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NEWMON T Newmont Mining Corporation <br /> Cripple Cieek &Vicroi Kline <br /> tUC't�",St <br /> P O Boy. 191 <br /> Victor. CO 80860 <br /> nE��Mor'Com RECEIVED <br /> NOV 20k6W <br /> SENT CERTIFIED RETURN RECEIPT REQUESTED DMON OF RECLAMA ON <br /> 7018 0680 0000 4627 6139 WAND WVY <br /> November 20, 2018 <br /> Mr. Timothy Cazier, P.E. <br /> Environmental Protection Specialist <br /> Colorado Department of Natural Resources <br /> Division of Reclamation,Mining and Safety <br /> Office of Mined Land Reclamation <br /> 1313 Sherman Street,Room 215 <br /> Denver, Colorado 80203 <br /> Re: Permit No. M-1980-244; Cripple Creek & Victor Gold Mining Company ("CC&V"); <br /> Cresson Project; Written notification—Process Water Spill,November 14,2018 <br /> Dear Mr. Cazier: <br /> In accordance with Rule 8, Section 8.2.3 of the Mineral Rules And Regulations of the Colorado Mined <br /> Land Reclamation Board For Hard Rock, Metal, And Designated Mining Operations (Rules), Newmont <br /> Mining Corporation - Cripple Creek and Victor Gold Mining Company (CC&V) hereby provides the <br /> Division of Reclamation, Mining and Safety (Division) with a formal report regarding the November 14, <br /> 2018,Process Water Spill that occurred at the High Grade Mill (HGM). <br /> The following points address the requirements of Rule 8, section 8.2.3: <br /> a. Actions taken to respond to and correct the emergency situation or condition <br /> • At approximately 7:00 pm on November 14, 2018, a process water conveyance pipe line on <br /> the East side of the HGM near the cat walk developed a leak in a welded union. <br /> Approximately 200 gallons of process water spilled outside of primary containment. Process <br /> water consists of fresh water and sediment originating from the milling and filtering <br /> processes that occur in the HGM. Process water flows to a storage tank and is pumped back <br /> through the mill circuit as needed. No cyanide is utilized anywhere in the mill circuit, <br /> therefore there is no risk that the process water contains cyanide. <br /> • Upon discovery, the leaking process water conveyance pipe line was isolated and repairs <br /> were made to the weld. <br /> • A skid steer was used to over excavate the spill-impacted soil. <br /> • The excavated soil was transferred to the ore feed pile to be re-processed in the HGM. <br /> Approximately 2 cubic yards of soil was excavated in the cleanup efforts. Clean gravel was <br /> placed in the over excavated area. <br />